Setting The Exposure Mode And Time; Setting The Mode And Exposure Time In User Mode - iM3 Revolution 4DC Bedienungsanleitung

4.3. Setting the exposure mode and time

The exposure parameters are set by following the directions given below:
1) select the tooth to be examined
2) select the patient size
The exposure time is automatically shown on the handheld screen.
NOTE: each tooth and patient size selected is displayed for approximately 1 second according to the operating mode (En60, En63
or En65) used.
The suggested exposure time can be changed with keys
scale can be set. Random exposure times different from the ones provided in the R'20 scale cannot be set.
When the exposure time displayed differs from the default setting, icon
To save the new setting, make sure icon
to confirm the setting has been saved. At this point, make sure icon
NOTE: if the exposure time is not saved, the change made will be lost after a new entry or as soon as the handheld changes over
to stand-by.
Important: after customized settings have been made, the "Original exposure values charts" are no longer valid.
If icon is displayed while the exposure time is changed, it means the set time cannot be saved for the selected tooth-patient size combination.
In any case, the x-rays can be taken with the set time.
Important: when the suggested exposure time is changed, the sensitivity factor is also modified (by default set to F=19). Once
this change has been saved, it is applied to all the teeth and both patient sizes
The exposure time can also be modified by changing the sensitivity factor. Press keys
factor will be displayed.
Use keys and to change the value from 3 to 25. If the displayed value differs from the one previously saved, icon
quit this mode, press key
The selected operating mode is always used for each tooth and patient size combination in modes En60, En63 and En65.
In AUTO mode, each tooth and patient size combination is associated to the best mode from amongst the ones available. In this mode it is not
possible to assign a mode other than the default one to each combination. To set the mode, refer to paragraph 4.5 "Setting the mode and exposure
time in USER mode".
To change the mode amongst En60, En63, En65 and AUTO refer to paragraph 5.2 "Setting the operating mode".

4.4. Setting the mode and exposure time in USER mode

In USER mode, it is possible to assign an exposure time and a mode from amongst En60, En63 and En65 to each tooth-patient size combination.
The default setting corresponds to the AUTOmode settings with sensitivity factor F=19
To activate USER mode regardless of the mode currently being used, press keys
signal USER mode is active.
To deactivate USER mode press keys
12 12
is on and then press and hold down key
or . The change made to the sensitivity factor is applied to all the teeth and both patient sizes.
and again (icon
OPERATING INSTRUCTIONS
and . Exposure times ranging from 0.01s and 1.00s belonging to the R'20
comes on.
for approximately 2 seconds. The handheld will beep
is off.
and
and
goes off).
at the same time , the actual sensitivity
at the same time. Icon will come on to
comes on. To
EN